code: def p_scalar_step_col(p):
      """scalar_step_col : scalar_col STEP"""
      scalar = p[1]
      scalar.step = True
      p[0] = scalar
  
imports: import yaml
  from guild import _yacc
  from .None import Select, Scalar, Attr, Flag
  from .None import ParseError
  from .None import qlex
label_desc: Use image node_id 11 for calling a global function with example usage: p_scalar_step_col(p) without return types